I took this photo thinking these were reels of film, then decided maybe they were audio tapes since they weren’t all that wide.   But in looking at a second photograph that I took looking straight down in the box, I noticed that two or three had titles written on the canisters.  One read “MICRO PHONYS STOOGES”.  I googled that and found that it was #87 of the Three Stooges short films (you can watch it here: https://www.youtube.com/watch?v=bq0B5uzYA78).  Another said “Tales in a Teacup #103”, but I was unable to determine what that might have been.